diff --git a/src/Tools/tim_tool/src/gui/main_tab.rs b/src/Tools/tim_tool/src/gui/main_tab.rs
index 61d5609e..3647dfe3 100644
--- a/src/Tools/tim_tool/src/gui/main_tab.rs
+++ b/src/Tools/tim_tool/src/gui/main_tab.rs
@@ -2,10 +2,11 @@ use crate::{gui::{VRAM_HEIGHT, VRAM_WIDTH}, MainWindow, VRAMImage};
 use super::{GUIElementsRef, MainWindowRef};
 
 use slint::Model;
-use std::rc::Rc;
+use std::{rc::Rc, sync::{Arc, Mutex}};
 
 pub struct MainTab {
     main_window:     MainWindowRef,
+    mtx:             Arc<Mutex<i32>>,
     vram_file_list:  Rc<slint::VecModel<slint::StandardListViewItem>>,
     vram_image_list: Rc<slint::VecModel<VRAMImage>>,
 }
@@ -19,22 +20,30 @@ impl MainTab {
         main_window.borrow().set_main_tab_vram_file_list(vram_file_list.clone().into());
         main_window.borrow().set_main_tab_vram_images(vram_image_list.clone().into());
 
-        MainTab{main_window, vram_file_list, vram_image_list}
+        MainTab{main_window, mtx: Arc::new(Mutex::new(0)), vram_file_list, vram_image_list}
     }
 
-    pub fn add_new_vram_file(&mut self, file_name: &String, image: slint::Image) {
-        let vram_image = VRAMImage{
-            img:        image,
-            x:          0,
-            y:          0,
-            is_palette: false,
+    pub fn add_new_vram_file(&mut self, file_name: &String, image: slint::Image, image_palette: Option<slint::Image>) {
+        let add_new_image = |file_name: &String, image: slint::Image| {
+            let vram_image = VRAMImage{
+                img:           image,
+                x:             0,
+                y:             0,
+                palette_count: 0,
+                is_palette:    false,
+            };
+
+            self.vram_file_list.push(slint::StandardListViewItem::from(file_name.as_str()));
+            self.vram_image_list.push(vram_image);
         };
 
-        self.vram_file_list.push(slint::StandardListViewItem::from(file_name.as_str()));
-        self.vram_image_list.push(vram_image);
+        let _lock = self.mtx.lock().unwrap();
+        add_new_image(file_name, image);
     }
 
     pub fn remove_vram_file(&mut self, idx: usize) -> bool {
+        let _lock = self.mtx.lock().unwrap();
+        
         if let Some(element) = self.vram_image_list.iter().skip(idx).next() {
             if element.is_palette {
                 return false;
diff --git a/src/Tools/tim_tool/src/logic/mod.rs b/src/Tools/tim_tool/src/logic/mod.rs
index aba1c083..c938513f 100644
--- a/src/Tools/tim_tool/src/logic/mod.rs
+++ b/src/Tools/tim_tool/src/logic/mod.rs
@@ -14,7 +14,7 @@ impl Logic {
         Logic{unadded_tim: None}
     }
 
-    pub fn set_unadded_tim(&mut self, path: &PathBuf) -> Result<Image, Error> {
+    pub fn set_unadded_tim(&mut self, path: &PathBuf) -> Result<(Image, Option<Image>), Error> {
         let tim_info = TIMInfo::from_image(path)?;
         let image    = tim_info.get_slint_images();
 
@@ -22,7 +22,7 @@ impl Logic {
         Ok(image)
     }
 
-    pub fn add_unadded_tim_as(&mut self, _name: &String) -> Result<Image, Error> {
+    pub fn add_unadded_tim_as(&mut self, _name: &String) -> Result<(Image, Option<Image>), Error> {
         if let Some(unadded_tim) = &self.unadded_tim {
             let image = unadded_tim.get_slint_images();
 
diff --git a/src/Tools/tim_tool/src/logic/tim.rs b/src/Tools/tim_tool/src/logic/tim.rs
index 64ea2f1e..025eed4e 100644
--- a/src/Tools/tim_tool/src/logic/tim.rs
+++ b/src/Tools/tim_tool/src/logic/tim.rs
@@ -70,7 +70,7 @@ impl TIMInfo {
         }
     }
 
-    pub fn get_slint_images(&self) -> slint::Image {
-        slint::Image::from_rgba8_premultiplied(self.image_data.clone())
+    pub fn get_slint_images(&self) -> (slint::Image, Option<slint::Image>) {
+        (slint::Image::from_rgba8_premultiplied(self.image_data.clone()), None)
     }
 }
\ No newline at end of file
diff --git a/src/Tools/tim_tool/src/main.rs b/src/Tools/tim_tool/src/main.rs
index f89dafd9..3506d5a5 100644
--- a/src/Tools/tim_tool/src/main.rs
+++ b/src/Tools/tim_tool/src/main.rs
@@ -58,7 +58,7 @@ fn setup_file_tab(gui_elements_ref: Rc<RefCell<GUIElements>>, logic_ref: Rc<RefC
             let file_tab  = &gui_elements.file_tab;
             let file_name = if let Some(name) = file.file_name() {Some(name.to_string_lossy().to_string())} else {None};
             
-            let image = logic.borrow_mut().set_unadded_tim(&file)?;
+            let (image, palette_image) = logic.borrow_mut().set_unadded_tim(&file)?;
         
             let img_size = image.size();
             if img_size.width > VRAM_WIDTH as u32 || img_size.height > VRAM_HEIGHT as u32 {
@@ -75,9 +75,10 @@ fn setup_file_tab(gui_elements_ref: Rc<RefCell<GUIElements>>, logic_ref: Rc<RefC
         let main_tab = &mut gui_elements.main_tab;
         let file_tab = &gui_elements.file_tab;
 
-        let file_name = file_tab.get_file_name();
-        main_tab.add_new_vram_file(&file_name, logic.borrow_mut().add_unadded_tim_as(&file_name)?);
-        
+        let file_name              = file_tab.get_file_name();
+        let (image, palette_image) = logic.borrow_mut().add_unadded_tim_as(&file_name)?;
+
+        main_tab.add_new_vram_file(&file_name, image, palette_image);
         file_tab.clear_load();
         main_window.invoke_change_to_main();
         Ok(())
diff --git a/src/Tools/tim_tool/ui/tab/main-tab.slint b/src/Tools/tim_tool/ui/tab/main-tab.slint
index 028b333e..dc3b1a0f 100644
--- a/src/Tools/tim_tool/ui/tab/main-tab.slint
+++ b/src/Tools/tim_tool/ui/tab/main-tab.slint
@@ -2,10 +2,11 @@ import { VRAMArea } from "../vram-components.slint";
 import { Button, ComboBox, GroupBox, StandardListView } from "std-widgets.slint";
 
 struct VRAMImage {
-    img:        image,
-    x:          int,
-    y:          int,
-    is_palette: bool,
+    img:           image,
+    x:             int,
+    y:             int,
+    palette_count: int,
+    is_palette:    bool,
 }
 
 export component MainTab inherits Rectangle {